Mansfield rule
noun
Mans·field rule
ˈmanz-ˌfēld-
often capitalized R
: a rule that a juror's affidavit or testimony as to juror misconduct during deliberations may not be used to impeach the verdict
Cite this Entry
“Mansfield rule.” Merriam-Webster.com Legal Dictionary, Merriam-Webster, https://www.merriam-webster.com/legal/Mansfield%20rule. Accessed 3 Nov. 2025.
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